Protesters took to the streets Wednesday night after Alfred Olango was shot and killed by El Cajon Police. Many held "Black Lives Matter" signs and chanted for justice. (Published Wednesday, Sept. 28, 2016)

Demonstrators protesting the shooting death of an unarmed black man said to be "mentally perturbed" gathered in El Cajun for a second night of mostly peaceful protests, chanting slogans and holding signs.

Several hundred people took to the streets of the San Diego suburb, marching from the shooting scene to City Hall and back, shouting Alfred Okwera Olango's name, taunting police and periodically blocking traffic.

The 28-year-old refugee from the Uganda was fatally shot by police after allegedly taking a "shooting stance" while holding an object during a confrontation with officers in shopping center's parking lot, El Cajon police said. Police later confirmed Olango was holding a vape smoking device.

The crowd staged a boisterous but peaceful rally near the site of Olango's death at the Broadway Plaza Shopping Center on Broadway, chanting "No justice, no peace," and holding "Black Lives Matter" signs.

A tense situation unfolded earlier Wednesday evening after some sort of scuffle prompted the crowd to scatter, and forced police to call in back up.

Officers in riot gear could be seen forming lines and blocking off streets, but mostly kept their distance. Demonstrators milled about the streets, but the mood grew more relaxed and the crowds gradually diminished.

Protests against the police shooting began earlier in the day, when crowds gathered and walked in between cars traveling in the opposite direction along Broadway.

Some protesters cursed as they marched while others screamed, "No violence! No violence!"

"It's just to bring attention to what's going on," Sara Bennett said. "I worry about him every day because of what's going on and how is it, they see me as a white woman and him as a black man. Its not fair, we need to be together."

Her son, Josiah, said he was out in the streets because he was tired of his mom worrying about him whenever he left the house.

"I shouldn't have to worry if I'm white, brown, black, purple, green," he said. "Doesn't matter. I want to feel safe and hang out and do what I want without police looking at me because I'm a certain color."

Protesters also held a candlelight memorial for Olango at the shooting scene on Broadway. They said his name multiple times and held a moment of silence before heading to the street for a sit-in.

Parkway Plaza in El Cajon, on the 400 block of Fletcher Parkway off Interstate 8, temporarily closed their doors Wednesday because of the protesters.

"By request of local authorities and out of an abundance of caution, Parkway Plaza will be temporarily closed due to demonstrations in the area. We will let you know when we are scheduled to reopen," the Plaza said in a statement on their Facebook page.

On Tuesday, officers with the El Cajon Police Department (ECPD) shot and killed Alfred Olango, a Ugandan refugee, during an encounter in the parking lot of a shopping center in the 800 block of Broadway. Police said Olango was reported to be "acting erratically" and did not follow orders to remove his hands from the pockets of his pants.